Closing device for piston rings



Sept. v30, 1941. G, BRQUWER 2,257,330

CLOSING DEVICE FOR PISTON'RINGS Filed Dec. 30, 1959 2 Sheets-Sheet 1 M/1M /2 24 sw Sept. 30, 1941. G. BROUWER 2,257,330

CLOSING DEVICE FOR PISTON RINGS Filed DGO. 30, 1959 2 Sheets-Sheet 2 Patented Sept. 30, 1941 CLOSING DEVICE Fon rIsroN RINGS vGeorge Brouwer, Muskegon, Mich., assgnor, by

mesne assignment s, to Ramsey Manufacturing Company, a corporation of Michigan Application December 30, 1939, Serial No. 311,755

(Cl. .Z9-89) 2 Claims.`

My invention relates to a device for closing the gap openings of `a plurality of piston rings without distortion of the piston rings.

Among the objects of my invention is to eliminate many steps in the nishing of piston rings; to provide a segmental closing device for closing the gap openings of a plurality of piston rings; to supply a segmental closing device in which there is a Xed and non-yielding member cooperating with a plurality of yielding portions positioned to close the gaps of the piston rings, and such other objects, advantages and capabilities as will later more fully appear and which are inherently possessed by my invention.

While I have shown in the accompanying drawings a preferred form of my invention, yet I desire it understood that the same is susceptible Vof modiiication and change without departing from the spirit of my invention.

Referring to the drawings, Fig. 1 is a perspective View of my device in closed position; Fig. 2 is a side elevation of the same in closed position; Fig. 3 is a side elevation opened to receive the arbor; Fig, 4 is a detail perspective view of one of the segments; Fig. 5 is a sectional view on line 5-5 of Fig. 2; Fig. 6 is a sectional View on line 6--6 of Fig. 5 showing the device ready for closing; Fig. 7 is a view similar to the view in Fig. 6, with the device closed and clamped; Fig. 8 is a detail view, partly in section, of the arbor with assembled piston rings.

The embodiment selected to illustrate my invention comprises a base I having attached thereto a fixed non-yielding bushing II having a rounded hollowed out portion I2. Hinged to the rear of the base I0 is a cover I3. The cover I3 has a pair of spaced outer collars I4 between which are positioned a plurality oi spaced segments I5. A pin I6 extends through the lower portions of the segments I5, said pin being attached on opposite ends to` collars I4. The segments I are semi-circular in form at I'I like corresponding portions I8 of thecollars I4 and are in alignment therewith.

In the upper inner portion of the cover I3 are a plurality of spaced openings I9 to receive a plurality of springs 2U to contact with their other ends shoulders 2| of segments I5 to exert pressure thereagainst. A pin 22 is attached on opposite ends to spaced collars through enlarged holes 23 in the upper portions of segments I5 to prevent their accidental disengagement from the cover, but adapted to permit the segments to iloat.

I4 and passes` Placed in the rounded portion I2 of fixed un- 55 yielding bushing I I is an arbor 24 with a xed collar 25 on one end and a removable collar 26 on the other end and provided with a plurality of uncompleted piston rings 2l therebetween, spaced by a plurality of spacers 28 so as to face the oppositely disposed segments I5 in the cover I3.

By use of handle 29 attached to cover I3 said cover I3 is moved down until segments I5 are against collars 25 and 26 of the arbor 24, to form a perfect circle therewith. The clamping structure 3D is then operated. The independently operating spring contacting segments each contact one ring with enough pressure to cause the ends to abut, the spring absorbing any further pressure. The fixed non-yielding bushing cooperates to hold the ring to its true radius so that the ring retains its proper spring tension. With the ends of the rings held in contact, the collars 25 and 26 are tightened by a nut 3I and the rings are held in this closed position while iinish turned. The rings are turned slightly under size so that when released and allowed to eX- pand outwardly by their own tension against a ring gauge or cylinder, the gap opening will be within specified limits, each ring one to another being alike in tolerances allowed in the gap opening without the necessity of gauging each ring and grading the rings according to their gap varlances.

While I have shown a removable bushing I I attached to base I0, I may hollow out base I0 itself and eliminate a separate member for bushing II.

I have also shown the cover as hinged to the base I0, but it is within the contemplation of my invention that cover I3 may be separate from base I0 and may be moved in and out of contact with base I0 or bushing I I by any suitable means.

My xed non-yielding member may be on the bottom or top, and my yielding members may be on either the lower or upper portion without departing from the spirit of my invention.

Having thus described my invention, I claim:

1. A closing device for piston rings comprising a xed and non-yielding member having a rounded hollowed out portion, an opposite member having a plurality of segments, each of said segments having a rounded hollowed out portion, said segments being formed of non-yielding material, said opposite member also having a plurality of springs, with one of each said springs bearing against one of each of said segments so that each of said segments is independently yielding, said device adapted in open position to receive an arbor having a plurality of spaced uncompleted unclosed piston rings. with each of said piston rings positioned therein between the xed and non-yielding member and a single segment of the opposite member, and means for closing said device so that the xed and nonyielding member cooperates with the segments to cause the ends of the piston rings to abut, each spring behind each segment independently absorbing any further pressure.

2. A closing device for piston rings compris-V lv ing a base, a xed and non-yielding bushing havrounded hollowed out portion, a plurality of springs housed Within said cover with one of each of said springs bearing against one of each of said segments so that each of said segments is independently yielding, said device adapted in open position to receive an arbor having a plurality of spaced uncompleted unclosed piston rings, with Yeach of ,said piston rings positioned between the fixed and nonyielding bushing and a single segment of the cover, and means for closing said device so that the fixed and non- 1 yielding bushing cooperatesvwith the segments to ing a rounded hollowed out portion attached toff said base, a cover hinged to said basera plurality cause the ends of the piston rings to abut, each spring behind each segment independently abof segments of non-yielding materialV floatably 15 Ysorbingmll further pressure. Y

attached to said cover, said segments having a GEORGE BROUWER. 

